ETH - the only altcoin, which really interested me. It has good prospects for development, and in the future he has every chance to become a good competitor for bitcoin. I am sure that in the near future the demand for it will grow and the price will rise on 15% by the end of December.
Wait, the only altcoin that interests you?
You're not even considering LTC, XMR, DASH, or even ETH itself (the
real Ethereum) to be an interest?